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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Final Expansion v3 cartridge emulation
**********************************************************************/
#ifndef MAME_BUS_VIC20_FE3_H
#define MAME_BUS_VIC20_FE3_H
#pragma once
#include "exp.h"
#include "machine/intelfsh.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> vic20_final_expansion_3_device
class vic20_final_expansion_3_device : public device_t,
public device_vic20_expansion_card_interface
{
public:
// construction/destruction
vic20_final_expansion_3_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
// device_vic20_expansion_card_interface overrides
virtual uint8_t vic20_cd_r(offs_t offset, uint8_t data, int ram1, int ram2, int ram3, int blk1, int blk2, int blk3, int blk5, int io2, int io3) override;
virtual void vic20_cd_w(offs_t offset, uint8_t data, int ram1, int ram2, int ram3, int blk1, int blk2, int blk3, int blk5, int io2, int io3) override;
private:
enum
{
REG1_BLK0 = 0x01,
REG1_BLK1 = 0x02,
REG1_BLK2 = 0x04,
REG1_BLK3 = 0x08,
REG1_BLK5 = 0x10,
REG1_START = 0x00,
REG1_SUPER_ROM = 0x40,
REG1_RAM_1 = 0x80,
REG1_RAM_2 = 0xc0,
REG1_SUPER_RAM = 0xa0,
REG1_RAM_ROM = 0x60,
REG1_FLASH = 0x20,
REG1_MODE_MASK = 0xe0
};
enum
{
REG2_BLK0 = 0x01,
REG2_BLK1 = 0x02,
REG2_BLK2 = 0x04,
REG2_BLK3 = 0x08,
REG2_BLK5 = 0x10,
REG2_A13 = 0x20,
REG2_A14 = 0x40,
REG2_IO3 = 0x80
};
offs_t get_address(int bank, int block, offs_t offset);
uint8_t read_register(offs_t offset);
void write_register(offs_t offset, uint8_t data);
required_device<amd_29f040_device> m_flash_rom;
optional_shared_ptr<uint8_t> m_ram;
uint8_t m_reg1;
uint8_t m_reg2;
int m_lockbit;
};
// device type definition
DECLARE_DEVICE_TYPE(VIC20_FE3, vic20_final_expansion_3_device)
#endif // MAME_BUS_VIC20_FE3_H
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